Chock block



Sept. 27, 1932.

E. s. EVANS 1,879,91?

CHOCK BLOCK Filed April 16, 1931 4 Ida/42rd of Ez/ma 4 Patented Sept. 27, 1932 UNITED STATES v EDWARD S. EVANS, F DETROIT, MICHIGAN, ASSIGNOR TO EVANS PRODUCTS COMPANY,

PATENT OFFICE.

01F DETROIT, MICHIGAN, A. CORPORATION OF DELAWARE cnocx BnocK Application filed April 16, 1931. Serial No. 530,624.

This invention relates to certain new and useful improvements in chock blocks.

The primary object of the invention is to provide a wooden chock block of the type employed in the shipment of motor vehicles,

the block being of the usual design but having substantial portions thereof removed for the purpose of reducing the weight of the chock block and to aid in the drying of the Q chock block without sacrificing inherent strength thereof.

An important item in the shipment of motor vehicles has relation to costs that are based upon tonnage or weight and an important object of this invention is to reduce the weight of the chock block. Attempts have been made to reduce the weight of a wooden chock block by boring a relatively large hole in the bottom thereof, but such methods have proved faulty as undue stresses and strains are presented during use of the block and such methods also result in checking of the block during the drying out process.

The gist of this invention is to provide 1 a wooden chock block of the usual configura-.

tion with a plurality of holes bored therein and so related to provide walls of substantially uniform diameters or thicknesses throughout the block which method greatly reduces the weight of the block and also facilitates drying out of moisture by providing increased surfaces for exudation of moisture and by the provision of a plurality of holes or openings, checking of the block is obviated, it being understood that the holes may be bored into the chock block from the bottom upwardly toward the wheel engaging face, from the rear wall of the chock block toward the wheel engaging face and said holes may be bored transversely of the block through the side faces thereof.

WVith the above and other objects in view that will become'apparent as the nature of the invention is better understood, the same consists in the novel form, combination and arrangement of parts hereinafter more fully described, shown in the accompanying drawing and claimed.

In the drawing a Figure 1 is a side elevational view of a chock block constructed in accordance with the present invention; v

Figure 2 is a top plan View of the same;

Figure 3 is a vertical longitudinal sectional view taken on line 33 ofFigure 2, showing holes in the chock block directed upwardly from the lower end with the closed upper ends of the holes terminating at substantially equal distances from the upper-faces of the block; i

Figure 4 is a vertical cross-sectional View taken on line 44 of Figure 3; Y I Figure 5 is a bottom plan view of the chock block;

Figure 6 is a vertical cross-sectional View of a chock block showing the holes bored transversely thereof and extending through the side walls of the block; and

Figure 7 is ,a vertical longitudinal sectional view of a chock block having the holes bored therein from the rear wall toward the tire engaging face. Q

Referring more in detail to the accompanying drawing, and particularly to Figures 1 to 5, the reference numeral 1 designates a wooden chock block having a rearwardlydirected heel 2 to facilitate anchoringof the chock block to a car floor or other support while the forward face 3 of the block is transversely and longitudinally curved to accommodate the same to the contourof an automobile wheel tire. i g

It being the object of thisinvention 'to re duce the weight of the wooden chock block and also to facilitate drying out of moisture in the wood, a plurality of holes l are bored into the block 1, opening at the lower end 5 of the block with theirupper. closed ends 6 terminating at substantially equal distances from the upper faces of the block as shown 90 in Figures 3 and 4. The formation of the holes 4 in the block 1 result in a plurality-of Walls 7 of substantially uniform thickness. It has been found in experimental use that it is possible to reduce the weight of the block by at least 20% by the boring of the holes 4 therein without in any Way lessening or decreasing the strength of the block and that an additional 20% in weight reduction is effected by the drying out of the block. With the provision of a plurality of holes, so closely arranged as illustrated, a plurality of exposed surfac-es for the exudation of moisture is provided and as found by actual tests, the block will thoroughly dry out without the wood checking. It will therefore be seen that a single chock block can be reduced in" weight by at least 410% without lessening the adherent strength thereof and it is "possible to utilize this form of block in the shipment of motor vehicles and still come within minimum" freight rate.

As shown in Figure 6, the chock block 1a has transverse openings or holes ta bored therein and extending through the side walls of the block, defining spacer walls 7a of substantially uniform thicknesses, the holes 4a being disposed at approximately equal distances from the bearing surface ofthe block.

The foregoing objects are also embodied in the form of invention illustrated in Figure 7, wherein the chock block 1?) has the holes 46 bored therein from the rear wall of the chock block'and extending toward the bearing surface, the holes 4?) extending longitudinally of the chock block and arranged in parallelism defining spacer walls 76 of substantially uniform thickness.

From the above detailed description of the device, it is believed that the construction and use thereof will at once be apparent, it

being noted that the weight of the block may be reduced and the drying out of the same accomplished in the absence of checking by the provision of openings or holes in the chock block extending in the various directions indicated, and while there are herein shown and described the preferred embodiments of the present invention, it is never theless to be understood that minor changes may be made therein without departing from the spirit and scope of the invention as claimed. V.

I'claim:

' 1. A wooden chock block having a plurality of holes therein of a depth to provide substantially uniform thickness of walls throughout the block whereby the block may dry out evenly without checking.

2. A wooden chock block having a plurality of holes therein of a depth to provide substantially uniform thickness of walls throughout the block whereby the block may dry out evenly without checking, said holes opening at the lower end of the block and allowing the block to dry out evenly without checking for further weight reduction.

- In testimony whereofI atfix my signature.

EDWARDS. EVANS. 

